Do you use link shortening services?

Hi!what are your thoughts on shortening services? (that one with ads) Do you like it, or is it too spamy for you?And where do you use it? On facebook, blogs?I've been using shorte.st on my blog for a few weeks now and I’m really happy with it.If I have to chose between a banner and a pass-through ad, I definitely prefer the second one.Thanks to that I don't have to worry about ads cluttering my blog.Your thoughts?

As a reader I do not click the ads even if I like to read the blog post. Turn-off ako sa ganun kasi may redirection. Tapos may red flag na yung site na yun sa akin in short tatandaan ko yung site na yun para hindi na ako maglanding sa page niya

While I've never proven it, people with access to large amounts of data say that a link with a 301 redirect is handicapped a bit. Therefore, I'd say that using a shortened URL isn't the ideal option - but it's better than no link at all, and it certainly isn't bad.